Functional changes throughout follicular atresia in the ewe.
نویسندگان
چکیده
منابع مشابه
Ovarian Follicular Atresia
Throughout ovarian development and function in mammals, a highly orchestrated, periodic process known as follicular atresia occurs that destroys and eliminates follicles and oocytes from the ovary. Follicular atresia is pervasive. In humans, it is estimated to account for 99.9% of the loss of oocytes from development of the fetal ovary until reproductive senescence (Baker, 1963; Faddy et al., 1...
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Background: Although the chemotherapeutic agents have been known for their cytotoxic effects on normal mammalian cells, these compounds are used widely for controlling the carcinogenic cells proliferation. Cyclophosphamide (CP), a well-known nitrogen mustard alkylating agent is used for autoimmune disorders and tumors treatment. Considering the inhibitory effect of CP on cell division, the ovar...
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The reproductive performance of any mammalian species can be enhanced by enriching nutrition, regulating environmental factors like photoperiod, temperature, humidity etc., through selective breeding, endocrine manipulations and better management practices (Sharma, 2000; Maillet et al., 2002; Bussiere et al., 2002; Iwata et al., 2004, 2005; Rudolf, 2007; Bhardwaj and Sharma, 2011). The endocrin...
متن کاملFollicular atresia in pigs: measurement and physiology.
The physiological regulation of follicular atresia was investigated during the early luteal phase after ovulation and during altrenogest-synchronized preovulatory maturation in pigs (gilts). Apoptosis in dispersed granulosa cells was determined by flow cytometry. Apoptotic (A0) cells contain low, subdiploid amounts of DNA fluorescence. Follicles were classified biochemically as atretic or nonat...
متن کاملFollicular dynamics throughout the oestrous cycle in sheep. A review.
Whatever the stage of the cycle, follicles of various sizes are apparent on the surface of the ovary of sheep. No evidence of waves of follicular growth at fixed-time intervals has been found during the luteal phase, and growth probably occurs at random until the follicle attains a size of 4 to 7 mm. This shows that follicles can enlarge under a wide range of hormonal levels. The recruitment of...
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ژورنال
عنوان ژورنال: Reproduction Nutrition Development
سال: 1993
ISSN: 0926-5287
DOI: 10.1051/rnd:19930112